Loose-leaf binder



Oct. 2, 1928. v

A. RUBIN LQQSE LEAF BINDER Filed Aug.16, 192s 2 Sheets-Sheet 1 x I 1 wOct. 2, 1928.

' A. RUBIN LOOSE LEAF BINDER Filed Aug. 16, 1926 2 Sheets-Shet ,2

.HDOLPH Rue/M Y binder is in its locked condition. -My invention isapplicable to closed back and open Patented Oct. 2, 1928.

* UNITED. STA

TEES

PATENT AnoLrH RUBIN, or s'r; tours, MISSOURI, AssIGNoR'ro SIEBERrnonuors A UF'A TUBING COMPANY, or sex Louis, VMISSOURI, A ooJaroRA'rIo0E MISSOURIJYZF LOOSE-LEAF BINDER.

Application filed August 16, 1926. SerialNo. 129,416i

This invention relates to loose leaf binders of the post type, and hasfor its main ob ectto provide an inexpensivebmder of simple design thatis easy tooperate and of such construction thatthere is no possibihtyofthe leaf-clamping members slipping or movlng relatively toeach other soasto relieve the clamping pressure on the leaves when the back bindersand various changes can be made in the construction of the cooperatingparts of the binder Without departing from the spirit of my invention. Ip Y Y Figure 1 is a top plan vlew'of a, closedback binder constructed inaccordance with my invention showing the covers of the b nder open. Y 4

Figure 2 is a detail sectional V ew, taken on the line 22 of Figure 1,looking in the direction indicated by the arrow. 7 Figure 3 is afragmentary end View of the bindelflshowing the binder unlocked and theleaves removed. Figure d is a fragmentaryv end view, showing the binderlocked. g 5 Figure 5' is a sectional'view, taken on the line 55 ofFigure3, illustrating one means that can be used for connecting thecooperating channel-shaped guides and slides to the leaf-clampingmembers. FigureG-is a fragmentaryen'd v ew,11lustrating another form ofmy lnvention. 1

Figure 7 is a sectional view, taken on the 1ine77 of Figure 6. 1 Y YFigure 8 is a fragmentary endview, llluS- trating still another form ofmy invention,

and

line 99 of Figure'S.

In the form of my invention shown n Fig uresl, 2," 3, and the binder,comprises two opposed leaf-clamping members Aand 1A, hinged covers'Bgand B carried by said leafclampingmembers, solid posts C on therespective leaf-clamping members arranged. in staggered relation, andadapted, to pass through holes inthe rear edge portions of the leaves00,80 as to prevent the leaves from shifting relatively to theleaf-.clampingmeinbers, and back members "D andD carriedby theleaf-clamping members Acand A, respectively, and disposed atsubstantially right-angles to same so asto form a solid back for thebinder that protects the rear:

on, the leaf-clamping members:-

.Figure 9 is a sectional view, taken onthe and constructed so that theyedges oftheleaves. \When the binder is :in 1ts normal closed conditionthe leaf-clamping members A. and A firmly bind the leaves to gether, andwhen it is desired to open the I.

binder preparatory to removing or insertingleavesrsaid leaf-clampingmembers aresep-- arated or-moved posts Cfrom theholes inthe rear edgepor tions of the leaves. Y 7 i a My invention consists of a novel meansfor preventing relative movement ofth'e'xleaf clampingmembers A and-Awhen the binder is locked or closed. Said means, briefly d'e} scribed,consists of a guide carried by'one of" the leaf-clamping members,

a slide reciprocatingly mounted in said guide and carried b the otherleaf-.clampingv member, .and'ade' vice for clamping said slide in jsaidguide.

The particular shape, of said guide and slide is immaterial; variouskinds andforms of de i vices may be used to clamp-the slideiriftheguide,the binder maybe provided with one cooperating guide-and slide, or aplurality of cooperating guides and slides, and said guides" and slidesmay bearranged invarious ways In the binder shown in Figures 1 to 40fthe drawings, the leaf-clamping'inember A is provided at. its ends'withtwdlaterally; projecting guides E and Ethat are disposed atright-angles'to same, as shown in Figure 1,,and the leaf-clamping memberA is pro? videdfat its' en'ds witht'wo right-angularlydisposed slides Fand F that are reciprocatf ingly mountedfin said guides: Said guides arepreferably of the cross-sectional shape apart soas to withdraw the shownin Figure 2, so that they will embrace locking devices on theguides'arranged inlong'itu(finally-disposed grooves 1 in the slides canbe turned or oscillated so ZtstO exert frictional pressure on'the wallsof said. grooves. Theilocking device 2 of each -guide. is carried; bythe guide in whichthe slide moves. said lock ing device 2 isoscillatingly mounted in the the drawings, said locking means consistsof I guide, and it'is. provided withaflever 3 or other operating memberby which t can-be 5 set in one position, referred to asits unlockedposition. wherein-it is disposed in such rela tion with the groove 1. inthe slide that it will f' .FFIC E. I V

not exert any; appreciable friction on same,

" or set in another position, referred to as its locked position,wherein it bears tightly against the Walls of the groove 1, and thuseffectively prevents the slide from moving relatively to the guide- Whenthe binder is unlocked, as shownin Figure 3, the locking devices 2, aredisposed longitudinally of the grooves 1 in the slides F and F, therebypermitting said slides tobe moved longitudinally ofithe guides E andE tomove the leafv clumping members A and-A towards or away from each other,and when the binder is in its clwed orlocked condition, as shown inFigure 4, the locking devices2 are disposed V crosswise of the groovesl,so that the ends of same will exert suflicient pressure on the walls,of'said grooves to securely lock the slides F and F in the guides E andE; The operating levers3 are arranged on the outer sides of'the guides Eand E in a position v where theyrcan be easily manipulated, and

each of said levers is preferably provided withcaihead'piece 3 that hastwo fiat faces 4 andli thereon, which are adapted to cooperate with aflat-faced abutment 6 on the guide with which the lever is associated. Afriction' washer 3 is preferably arranged between each of the. headpieces 3 and the adjacent surface of the guide so as to assist inholding the locking device in the position into which it has been moved.When the locking devices are manipulated to unlock the binder'the fiatfaces 4 on the head pieces of the operating levers 3 strike against theabutments 6, and thus determine the position (If the locking devices 2in the grooves 1, and whensaid levers are turned into the position showninFigure 4 so as to render the locking devices 2 operative, the fiatfaces 5 on the head piecesor said levers strike against the "flat-faced'abutments 6, thus indicating to the operator or user that the lockingdevices 7 2 have beenturned 'far enough'to lock the slides. The guidesand slides are herein illustrated as being connected to the leaf-"clamping members that carry same, by lat-- (wally-projecting portions?at the ends of said guides'provided with notches for receiving lllgs:8on. the leaf-clamping members 7 that are bentinto overlapping relationwith said portions 7, as shown in Figure 5.

In the form of my invention shown in Figures 6 and 7 the devices thatare used to lock the slides in, the guides consist of binding screwsQfrotatably mounted in the guides and arranged so'as to exert pressureon the slides in a direction tending to force said slides lat-- erallyaway from their cooperatingguides, and thus clamp "said slides tightlyagainst side walls 'on the guides that limit the out wardmovement orlateral movement of the slides." -Each of said binding screws 2 isprovided'at its outer end with a head piece 9 that can either be ofnon-circular shape so as to enable itto be turned with a wrench orthe'like, or if desired, said-head piece can be provided with holes 9,as shown in Figure 6, for receiving pins 10 on a removable key 10, asshown in Figure 7.

In Figures 8 and 9 Ihave illustratedthe guides of the binder equippedwith locking devices 2 of the same kind as those used in the bindershown in Figures 1 to 4;, but cons'tructed in such a manner that a'removable key 11 can be used to turn said locking devices into theirlocked or unlocked positions, said locking key having pins or prongs 11that are adapted to be inserted in holes 12 in head pieces 12 attachedto the locking devices and arranged on the outer sides of the guides inwhich the slides'reciprocate. If

desired, said head pieces can be providedwith right-angularly-disposed'flat faces 4- and-5 that are adapted to co-operate with flat 7 facedabutments 6 on theguides.

A 'binder'oft-he construction above described is easy to operate, it isinexpensive to manufacture and when it'is locked, the leaf-- clampingmembers cannot separate or move in a direction to reduce the clampingpressure on the leaves.

Having thus described my invention, what secure by 'Let- I claim as newand desire to ters Patent 1s:

1. A loose leaf binder, comprising opposed:

leaf-clamping members, a guide attached to one of said members,acooperating slide-sin braced by said guide and attached to the otherleaf-clamping member, a; locking device on said guide arranged so thatwhen it is turned into a certain position itwill exert sufficient saidguide-arranged so that whenitis turned into a certain position it willexert sufficient pressure on said slide'to prevent it fromcmovringlongitudinally of said guide, and means for limiting the movement ofsaid locking de vice when it is turned into its lockedlposition' andinto itsunlocked position; p

. 3. A loose leaf binder, comprising opposed leaf-clamping members, aguide attached to one of said leaf-clamping members, acooperating slideattached to the other-'leaf clamp .ing member, and provided with a.groove, and

a locking devicev carried by said guide: positioned in said groove andadapted to be turned so as to exert suflicient" frictional pressure onthe walls of said groove to hold said'slide and guide against relativelongitudinal movement. v j 4. A, loose leaf binder, comp-rising opposedleaf-clamping members, a guide. attached to one of said leaf-clampingmembers, a cooperating slide attached to the other leaflclamping member,and provided with a groove, a locking device carried by said guidepositioned in said groove and adapted to be turned tion.

5. VA loose leaf binder, comprising opposed leaf-clamping members, postsonsaidfmembers that pass through the leaves, guides attached to one ofsaid leaf-clamping members, slides attached to the other leaf-clampingmember and reciprocatingly mounted in said guides, said slides havinglongitudinally-disposed grooves therein, rockable locking devices insaid guides arranged in the grooves in said slides, operating memberscombined With said locking devices, and portions on said guides thatcooperate With said operating members to limit the movement of saidlocking devices. p v

6. Aloose leaf binder, comprising opposed leaf-clamping members, post-son said mem-' bers adapted to pass through the leaves, laterallyprojecting guides at the ends of one. of

said leaf clamping members disposed at substantially right-angles tosame, laterally proj ecting slides at the end of the other leafclamp-ingmember reciprocatingly mounted in said guides, and locking devices onsaid guides adapted to be manipulated so as to frictionally connect saidguides and slides together.

' [ADOLPH RUBIN.

